Portland police are asking for the public's help in solving the murder of a 50-year-old Portland man who was found dead in downtown Portland last Thursday.

Police said today that the Oregon State Medical Examiner has confirmed that Donald Ray Polk died of multiple stab wounds. His body was found about 8 a.m. Thursday in a bus shelter at Southwest First Avenue and Sheridan Street.

Police believe Polk was homeless at the time of his death so detectives do not know where he might have been regularly staying.

They are hoping to hear from anyone who saw Polk recently, knows where he was staying or from anyone with information about any disturbances late last Wednesday or early last Thursday in the area where he was found.

Those with information are being urged to call Detective Mark Slater at 503-823-9319.

View full sizeGoogle Street ViewDonald Polk was found in this bus shelter in Southwest Portland, on the edge of downtown.